Questions tagged [microchip]
Microchip Technology is an IC manufacturer, best known for its extensive range of PIC microcontrollers, but also memory and analog function ICs. The term "microchip" is a legacy term for integrated circuits, not just ones designed by Microchip Technologies. The company came into existence and took the name after the term became common parlance.
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Should I go for a raspberry pi pico or some single chip microprocessor? [closed]
I'm thinking of creating a small project. I'm new to microcontrollers. I want to either use a raspberry pi pico or one of those microcontrollers that microchip makes. The microcontroller from ...
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How do I choose the right microcontroller？
I have a new project that requires deploying deep learning algorithms on embedded chips.I'm new to this field, so I'm not quite sure what metrics do I need to choose based on.Such as how much RAM, ...
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PIC16F1825 trouble with simple increment MPLAB XC8
I have set myself up with on a breadbord with a simple PI16F1825.
I am using MPLAB x with XC8 V2.45
i have a led that turn on/off every second using the simple delay function.
i would just like to ...
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How can I find VDD in a Microchip datasheet?
I am horribly lost on how to find the value and location of VDD pins in the datasheet found on this webpage. Are there no table of contents for microcontrollers in general?
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Issues with AVRISP MKII programmer
I am trying to program ATtiny10 using AVRISP MKII programmer and AVRDUDESS, spend 2 days trying to flash it but had no luck. Now I came up with a few issues regarding AVRISP MKII programmer, which ...
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NE555, 50% duty cycle at 110kHz
I want to get an NE555 chip with a 50% duty cycle to 108-110kHz in output.
I have already experimented with various online calculators and values. However, I never get the values that allow me to do ...
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Interfacing TM1640 LED driver with 7 segment display and PIC microcontroller
I have a customized LED display in which AIP1640 driver IC mounted on it and I think it's equivalent to TM1640. So does anyone have a working library for this driver?
I want to interface it with ...
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USB2244 card power is never supplied and USB port is not detected [closed]
I have been trying to use the USB2244 on a board but I can't seem to get it working and I am not sure what the problem is. I went over and over the datasheet but can't seem to figure out what I'm ...
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Connecting external clock source in PIC 18F4520
I require a delay of about 30 minutes using timers in PIC 18F4520. Using an internal crystal of 16 MHz, I would not be get desired delay from internal clock source.
I thought of using external crystal ...
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Planning a University Course: Advantages of modern MCU platforms [closed]
I want to get sincere advice regarding the use of microcontrollers in educational institutes.
I am an Engineer at a University in India.
We have been using PIC microcontrollers (PIC16 and PIC18) for ...
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I need the part name or description of below U12 i the PCB
I need the part name or description the U12 in the PCB highlighted.
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microSDXC responding to SPI ACMD41 with SD mode?
For a project I am working on, I need to access raw blocks from a microSDXC 128GB card (SanDisk) using SPI, and I am writing my own code to do this. I am using a PIC18F87K22 microchip to talk to the ...
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Why do my MCU's capacitive voltage divider results change with different power supplies?
I've started experimenting with the onboard capacitive voltage divider inside the PIC18F47Q43. I've had success getting it up and running and getting usable results. This is the block diagram of it:
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Ziegler–Nichols method of PID auto tuning
I am working on a problem where I need to implement auto tuning PID control using Ziegler–Nichols method. Basically I want to control temperature using it.
The PID has to be implemented with the ...
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How could I make my PIC32CXMTG-EK send messages to the electrical network through PLC without needing a request from my Circutor concentrator?
My scenario:
PIC32CXMTG-EK Evaluation Kit
PL460 Evaluation Kit
Compact DC-S SBT, PRIME PLC Concentrator
Relevant information about it:
The main protocol in use for communication is DLSM-COSEM.
The ...
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Unstable output of ADC
I am trying to read the voltage from analog sensor via ADC of pic18 microcontroller. It has 10 bit ADC i.e. 1024 steps. But measuring a voltage of 2 V range (approx) my result keeps fluctuating + and -...
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ATmega328P bootloader
I have read the complete datasheet of the ATmega328P but have a few confusions regarding the chip. In the datasheet in a section I have found that there is no specific bootloader section and also the ...
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PIC32CX BZ2 register names don't match documentation
Preamble: I use MPLABx 6.1, the compiler (XC32) is installed and functions correctly, the correct device (WBZ451 with PIC32CX) is selected and xc.h is included. I have about 15 years experience with a ...
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Can someone help me identify this chip on a robot vacuum?
It’s on a Rowenta Xplorer series 50, seems like it controls one of the wheel motors and it fried
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Output of the built in ADC in PIC 18F4520
I am trying to use the built in ADC of a PIC 18F4520.
The input is a voltage signal from an analog sensor whose output varies with temperature. It comes to be about 5.2 V at a certain temperature.
I ...
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Arithmetic calculation error using PIC 18F4520 [closed]
I am trying to solve an equation using a PIC 18F4520 but the result that I am getting is not matching to the accurate answer that I calculated with Matlab.
The part of the equation is ...
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Why don't microchips fail from repeated heat cycles? [closed]
Microchips can experience a pretty wide range of temperatures and they don't seem to crack or experience substantial fatigue from constant expansion and contraction. Why is this?
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Strange.. UART accessing U1RXREG is not emptying buffer? PIC32
Not sure what's going on this PIC32 device, the ISR is only getting the first 8 characters (the size of the FIFO buffer) the first time it receives a string. Subsequent string arrivals cause an ...
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Arithmetic calculation using long double in PIC 18F4520
I need to know the maximum size of number (number of decimal digits) that we can multiply using PIC18F4520.
I am using long double because I need a decimal value of high precision and calculations ...
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PIC Low Voltage UART
I'm receiving data from SIM800L module to PIC 16F628A.
The problem is the PIC (PIC does not receive data properly from UART).It is working in home. But in site conditions It misses
lots of data. I ...
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LAN8742a autonegotiation gives a half-duplex mode result when it's espected to be full-duplex mode result
I was testing an ethernet based project PCB that uses LAN8742a xip (lan xip seller link) and a stm32f207zg microcontroller (mcu seller link). We are having some issues when we increase the stress ...
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PIC Microcontroller Environment VS Arduino Microcontroller Environment [closed]
Does the PIC chip environment have any advantage against AtMega or Arduino Environment for low cost, low power regular use rather than being a little chip?
Yes, this is a broad question but I am ...
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ADC trigger Timer1 using dsPIC33CK64MC105
I currently working on the dsPIC33CK64MC105 controller. I tried to configure ADC triggered by Timer1 I have done step as in the datasheet but I didn't get the ADC data can anyone correct me for the ...
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Holtek HT16C21 not Acknowledge the I2C Slave address [closed]
I have a circuit with PIC16f628a interfaced to Holtek HT16C21 Display RAM IC via I2C interface, I have two MCUs one is Original ...
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Logic value of a single input pin into a microcontroller
I'm trying to get the logic value from a node in a circuit (it is the output of a comparator that can either be 0V or 5V) into an AT89S51 microcontroller. My program just tries to get the value of pin ...
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Read analog value with microcontroller without ADC
I have an AT89S51 microchip from Atmel. I want to read a value from a node in a circuit that can be either ~0V or ~5V (it's the output of a comparator, so the comparator itself is my ADC).
Is it ...
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Can components like EPROM or NE 555 timer be built from scratch?
I was watching some videos on building an 8-bit computer and plan to do so myself, however, I wondered if it was possible to make something like an EPROM or 555 timers from scratch using basic ...
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Microcontroller not blinking LED
I want to check if my microcontroller is working. It's the first time I'm working with microcontrollers. I followed this tutorial to blink a LED at the P1.0 pin, but nothing is happening.
My ...
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What are the chips to build usb device? [closed]
I want to make some device, that should just do one thing - send few values - x,y and z via usb, so at pc end, for example there will be a driver for that device, which some program can access and ...
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Send binary data from circuit to PC through USB
I have an 8-bit BUS with a binary word that I want to send to a PC through USB in a certain baud rate. I understand that the cheapest way would be to use a DSP chip, but I'm unfamiliar with ...
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Unable to lower current consumption below 500 µA in SAMD21 chip during deep sleep
I'm posting here as a last resort as I've read through the SAMD20 and SAMD21 datasheets, searched forums and used different deep sleep examples as references.
My problem seems very similiar to what ...
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Imprecise pulse width capture using Atmel SAMD51
We are using an ATSAMD51P19A and the Timer/Counter for Control Applications (TCC) to detect the pulse width from the assertion of a pin to the detection of a signal on another pin, and are having ...
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Programming a PIC18F452 with LCD gone wrong
I want to learn about microchip programming and have downloaded PicsimLab.I am trying to program a PIC18F452 to display the character '0' in the output of a LCD.Here is the picture with the binary ...
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Continued inoperation of PIC microcontroller [duplicate]
I have a PIC16F18076 microcontroller that I have been trying to get working and it hasn't been working at all, I cannot get any of the microcontrollers(I have 5) to show any sign of doing anything I ...
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Problem with PIC I2C interface while communicating with SSD1306
My goal is to communicate with SSD1306 controller of OLED 128x32 display with PIC16F15323 which has I2C interface built-in. Obviously, I've read whole documentation for my MCU and for SSD1306 ...
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Inconsistent operation of PIC microcontroller
I have a PIC16F18076 microcontroller that I have been trying to get working and it simply has been working very inconsistently or not a all. I'm programming it using MplabX IDE and a Pickit 4, the ...
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How do I get started with ATWINC-IC from Microchip?
I want to get started with ATWINC-IC from Microchip. It's a WiFi IC that I'm going to implement onto a PCB.
I have installed Microchip Studio and now I'm looking for how to start a project with that ...
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Why are the Pololu AVR programmer and Microchip Studio showing different target voltages with the same PCB?
Yesterday I programmed a PCB (powering it using an external power supply, it's a PCB of a commercial device) with an ATMEGA2560 MCU using the Pololu AVR v2.1 programmer and the Microchip Studio ...
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External interrupt code for PIC18LF47k40 not working
I wrote a external interrupt code for PIC18LF47k40 on MPLAB X IDE to toggle a LED when rising edge will be occurred. It is not working, but the same type code for PIC18F452 is working fine, only I ...
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PIC microcontroller does not immediately toggle off LED
I have a Microchip PIC16F18076 microcontroller and have programmed it with the following code, which simply toggles an LED (connected to RA1) state depending on the value of another GPIO pin (RA0):
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How can one vary the resistance of a circuit using a microcontroller? [closed]
I am trying to have a microcontroller light up a few LED's, all LED's have a forward voltage of about 3V. The issue is that my power supply(which in this mock-up is 9V) will push too much voltage if ...
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Enabling timer1 10-bit mode in ATtiny261
I am having trouble enabling timer1 in 10-bit mode on a ATtiny261.
The datasheet only says that if any non-zero value is written to the TC1H temporary register the 10-bit mode is enabled, but it's not ...
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Compile error on the Microchip MCC generated code
I use Microchip MPLAB X MCC to generate the base application using TCP/IP lite stack for system with pic16f18346 and enc28j60 chipsets. I get the following errors. Scanning thru this error log you ...
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Is 'maximum pin current' on a TP4056 applicable to battery charging or to powering the load?
I am buying this Li-ion charger. It has pins for the battery and the output.
The main chip is a TP4056 voltage regulator. It regulates voltage from 5V to 4.2V to charge up a 18650 Li-ion battery. It ...
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Interface to Ethernet to USB bridge (LAN7800)
I have a design that requires interfacing LAN7800 chip (Ethernet to USB bridge) to a microcontroller on the same PCB.
I am using SAME54 microcontroller. This is then connected to one of KS8995 (...
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